- Bel Shamharoth (Wikipedia)
Bel Shamharoth is a chthonic god of the Underworld and the Dungeon Dimensions of Discworld who is drawn — with extra tenacles — greatly from the works of HP Lovecraft and is encountered in the first Discworld novel, The Colour of Magic.
- Regular octahedron (Wikipedia)
A regular octahedron is an octahedron that is a regular polyhedron. All the faces of a regular octahedron are equilateral triangles of the same size, and exactly four triangles meet at each vertex. A regular octahedron is convex, meaning that for any two points within it, the line segment connecting them lies entirely within it.
